Sir Joseph Williamson's Mathematical School

State-Funded School

sir-joseph-williamsons-mathematical-school-medway-south-east

South EastRegion

MedwayLocal Authority

Rochester and StroodConstituency

ME1 3ELPostcode

9.9

Academic Performance

Ofsted

About the School

Sir Joseph Williamson's Mathematical School is a state-funded secondary for pupils aged 11–18, located in Medway, South East.

The school is rated Outstanding by Ofsted. It currently serves 1,555 pupils. Sir Joseph Williamson's Mathematical School is part of Leigh Academies Trust.

Ofsted Rating

Safeguarding effective

Yes

Rating last maintained

2023

Subject Areas

Leadership &management

Outstanding

Quality ofeducation

Outstanding

Personaldevelopment

Outstanding

Behaviour &attitudes

Outstanding

Sixth formprovision

Outstanding

Academic Performance

Well above average

Ranked against secondary schools in England · 2024-25

Attainment 8: 69.5
Grade 5+ in English & maths: 93.5%
EBacc average point score: 6.82

Ethnicity

White

44%

Asian

17%

Black

23%

Mixed

10%

Chinese

Any other group

Unclassified

Pupils

1,555

Total Pupils

93%Boys

7%Girls

Pupil Characteristics

Free school meals

11%

England average

27%

First language not English

13%

England average

22%

Young carers

England average

0%25%50%75%100%

DfE school census, January 2026.

Key Information

Phase: Secondary
Age range: 11 – 18
Deprivation band: Average
Total pupils: 1,555
IDACI quintile: 3 (Average)
MAT name: Leigh Academies Trust

Inspection history

2 graded inspections published by Ofsted. Ungraded and monitoring visits are not shown.

Report published					Overall
18 May 2023	Outstanding	Outstanding	Outstanding	Outstanding	Outstanding
15 Dec 2008	Outstanding	Not reported in this inspection	Not reported in this inspection	Not reported in this inspection	Outstanding

A grey dot means Ofsted did not report that judgement in the inspection of the day — the sub-judgements shown here were introduced with the 2019 framework.

Ofsted data as at 31 December 2024. A school may have been inspected since, or had an ungraded visit that does not change its grade — check Ofsted’s own record.